package com.cup.common;

import java.nio.ByteBuffer;
import java.util.UUID;

import org.apache.commons.codec.binary.Base64;

import com.cup.common.encryption.Base58;

public class UuidUtils {

	public static String uuid() {
		UUID uuid = UUID.randomUUID();
		return uuid.toString();
	}

	public static String base64Uuid() {
		UUID uuid = UUID.randomUUID();
		return base64Uuid(uuid);
	}

	public static String base64Uuid(UUID uuid) {
		ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
		bb.putLong(uuid.getMostSignificantBits());
		bb.putLong(uuid.getLeastSignificantBits());
		return Base64.encodeBase64URLSafeString(bb.array());
	}

	public static String encodeBase64Uuid(String uuidString) {
		UUID uuid = UUID.fromString(uuidString);
		return base64Uuid(uuid);
	}

	public static String decodeBase64Uuid(String compressedUuid) {
		byte[] byUuid = Base64.decodeBase64(compressedUuid);
		ByteBuffer bb = ByteBuffer.wrap(byUuid);
		UUID uuid = new UUID(bb.getLong(), bb.getLong());
		return uuid.toString();
	}

	public static String base58Uuid() {
		UUID uuid = UUID.randomUUID();
		return base58Uuid(uuid);
	}

	public static String base58Uuid(UUID uuid) {
		ByteBuffer bb = ByteBuffer.wrap(new byte[16]);
		bb.putLong(uuid.getMostSignificantBits());
		bb.putLong(uuid.getLeastSignificantBits());
		return Base58.encode(bb.array());
	}

	public static String encodeBase58Uuid(String uuidString) {
		UUID uuid = UUID.fromString(uuidString);
		return base58Uuid(uuid);
	}

	public static String decodeBase58Uuid(String base58uuid) {
		byte[] byUuid = Base58.decode(base58uuid);
		ByteBuffer bb = ByteBuffer.wrap(byUuid);
		UUID uuid = new UUID(bb.getLong(), bb.getLong());
		return uuid.toString();
	}

}
